Asymmetric Berry-Phase Interference Patterns in a Single-Molecule Magnet

التفاصيل البيبلوغرافية
العنوان: Asymmetric Berry-Phase Interference Patterns in a Single-Molecule Magnet
المؤلفون: David N. Hendrickson, Simranjeet Singh, Junjie Liu, Katie J. Heroux, H. M. Quddusi, E. del Barco, Stephen Hill
بيانات النشر: arXiv, 2011.
سنة النشر: 2011
مصطلحات موضوعية: Physics, Condensed Matter - Mesoscale and Nanoscale Physics, Condensed matter physics, media_common.quotation_subject, General Physics and Astronomy, FOS: Physical sciences, 02 engineering and technology, 021001 nanoscience & nanotechnology, 01 natural sciences, Asymmetry, symbols.namesake, Magnetization, Geometric phase, Phase space, Magnet, 0103 physical sciences, Mesoscale and Nanoscale Physics (cond-mat.mes-hall), symbols, Single-molecule magnet, 010306 general physics, 0210 nano-technology, Hamiltonian (quantum mechanics), Quantum tunnelling, media_common
الوصف: A Mn4 single-molecule magnet displays asymmetric Berry-phase interference patterns in the transverse-field (HT) dependence of the magnetization tunneling probability when a longitudinal field (HL) is present, contrary to symmetric patterns observed for HL=0. Reversal of HL results in a reflection of the transverse-field asymmetry about HT=0, as expected on the basis of the time-reversal invariance of the spin-orbit Hamiltonian which is responsible for the tunneling oscillations. A fascinating motion of Berry-phase minima within the transverse-field magnitude-direction phase space results from a competition between noncollinear magnetoanisotropy tensors at the two distinct Mn sites.
Comment: 4 double-column pages
DOI: 10.48550/arxiv.1106.0258
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::970a4cf47408a64ad9d00ec25e159eae
Rights: OPEN
رقم الانضمام: edsair.doi.dedup.....970a4cf47408a64ad9d00ec25e159eae
قاعدة البيانات: OpenAIRE
الوصف
DOI:10.48550/arxiv.1106.0258